Tfl 467 
.P9 
Copy 1 



PLEASE PRESERVE THIS PAMPHLET. 

Thirty minutes spent in reading it may be worth 

thousands of dollars to you. 

This Edition especially for Engineers and Architects 



The Hastifig of Iroo and Steel 

HOW IT MAY BE PREVENTED 



AND 



HOW IT IS PROMOTED. 



The Prince Manufacraring Co., 

71 MAIDEN LANE, N. Y. 



n 



^ 



^T>- 



TA4fe7 



<-7^^-5(oc;>. 



" A Double Label 




Is Our Trade Mark." 



The Prinee Bros.' ]Wineral Bromn, 



FORMERLY CALLED 



PRINCES' METALLIC PAINT, 



IS MADE EXCLUSIVELY BY 



/ 



The Prince Manufacturing Co., 

A. C. PRINCE, PREST. DAVID PRINCE, SECY & TREAS. 

71 MAIDEN LANE, 

NEW YORK. 




DOUBLE LABELS ARE OUR TRADE MARK. 
''A Double Label" 




Is Our Trade Mark. 



(copyright JANUftBY, 1895, BY THE PRINCE MANUFACTURING CO.) 



The Best Paint for the Preservation of Iron and 
Steel from Kust and Corrosion is 

PRINCE BROS' MINERAL BROWN 

FORMERLY CALLED 

PRINCES' METALLIC PAINT. 



The Iron Ore used for making Prince Bros.' Mineral 
Brown is of a blue gray color. It is found in veins from 
6 to 15 inches thick, between strata of Hydraulic cement 
stone . 

It is Roasted. The paint ore is broken into small fragments 
and carefully roasted with wood. During this process 
Carbon Dioxide is expelled, and the Iron while red hot 
absorbs Oxygen and is changed into Peroxide op Iron, 
the highest possible form of iron oxide . No further change 
can take place in this by exposure to the air or moisture, 
no matter how long this may be continued. 

Unchang^eable. It is this quality of unchangeability that makes 
the Peroxide of Iron the most valuable source of durable 
color. 

Insoluble. ** Having been kept for many hours at a high 
temperature, it becomes practically insoluble in acids." 

Chemical Symbol. Its chemical symbol is FegOg. 

Loss in Roasting. The ore loses about 30%' in weight by 
being roasted. It is then carefully examined, and pieces 
not sufficiently roasted, or roasted too much, are rejected. 
It is then crushed into fragments the size of wheat. 

Ground Fine. Ground m mills specially made for the pur- 
pose into an impalpable powder, packed in new barrels, 
marked with the net weight, labeled with our double label, 
stenciled with our name and address on the side, and is 
ready for sale. 



Prince Bros.' Mineral Brown is of such a gravity and so 
finely ground that it does not settle in oil, or become hard 
or caked. It does not fade, scale, chalk, or crack. Mixed 
with pure Linseed Oil, it is elastic, waterproof, and not 
affected by dust, smoke or cinders. 

Is a Filler. The first coat acts as a filler upon wood or iron. 
It produces no sediment, grit or waste^ does not harden in 
the painter's pot. 

Adhesive. It adheres so strongly to iron, tin or wood, that 
after it has had time to dry thoroughly, it is almost impos- 
sible to remove it. It is the best possible 

Primer — when other colors are desired, which may be painted 
over it. 

Its Color is a rich Red Brown, which is quite uniform. 

Silica. It contains about 25^ of Silica, one of the best fillers 
known. 

Healthful. It is absolutely non-poisonous, and may safely be 
used upon roofs where the water is used for drinking, or 
upon the inside as well as outside of water tanks. 

Is Durable. It lasts so long unchanged that painters some- 
times object to it for this reason, as it makes their services 
less frequently required than when other paints are used. 

Prince Bros.' Mineral Brown. If a 300 lb. barrel of the dry 
pigment is put into a large tub, 40 gallons of Linseed Oil 
poured onto it and let alone for 12 hours that the oil may 
soak into and saturate the dry pigment, as it will do, then 
it may be stirred up by hand and will be found suitable 
for use to the last particle. There will be no sediment or 
grit. The paint ready for use will measure out one-fifth 
more gallons than the number of gallons of oil used. 

Covering Power. One gallon of paint made in this way will 
cover well with one coat 700 square feet of iron, steel or tin, 
and its durability is greater than that of any other paint. 

Harmless. There is nothing in it that can injure Linseed Oil. 
Together they make an Ideal Paint that is adhesive, water- 
proof, elastic, durable and economical. 

It is Cheap, in the true sense of the word, meaning that at a 
small cost it covers a large amount of surface, does its work 
well, and lasts for many years. 



Mortar Color. It is largely used for this purpose, as it is so 
strong in coloring power that it goes a great way and im- 
proves and strengthens the mortar or cement. 

For Structural Work of Iron or Steel, with pure Linseed Oil 
it should always be used ; there is no other paint made that 
has the s?ime preservative property. Its use should be made 
universal for this purpose, as great loss of property and life 
may in this way be prevented. 

Light Houses along the Atlantic Coast are painted loith it 
for a first coat for its preservative properties, and then 
covered with other colors. 

Prince Bros.' Mineral Brown {formerly called Princes' 
Metallic Paint) was first sold from 1858 to 1870 by Robert 
Prince (the original manufacturer), at five cents per lb. for 
barrel lots and four cents lb. for ton lots. Since then the 
price has been steadily reduced, as the demand for it in- 
creased, while the quality has been improved, until now it 
can be bought by the ton at the works for $25.00 to $20.00 
according to quantity, and by the barrel for If cents lb. 

Steadily Improved. By the use of improved furnaces and 
milling machinery made especially for us, the quality of this 
paint has been kept up to the highest standard, so that for 
fifteen years it has stood at the head of all dry pigments 
made in this country. 

Uniform Color. It is all made of a Uniform Color, a Red- 
Brown. If it were possible to make it in very light shades, 
or white, it would quickly take the place of all light colored 
paints, as it possesses so many excellent qualities which they 
lack. 

Adhesive. When mixed with pure Linseed Oil it is so adhe- 
sive to Iron or Steel that when dry it can hardly be scraped 
or sandpapered off, and is a complete protection against 
rust and corrosion. 

Iron and Steel. It should be used exclusively upon all Iron 
and Steel work, such as Bridges, Buildings, Roofs, Gas 
Holders, Elevated Railroads, Railroad Stations and wher- 
ever it is desirable to prevent rust. 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



6 

To be a Good Paint the dry pigment should combine several 
qualities : 

First, When mixed with oil, it should have sufficient opacity 
to cover thoroughly with one coat any surface of wood or 
iron (this shows its covering capacity), and it should have 
this quality to such an extent that when brushed out care- 
fully a thin coat completely hides the wood or metal from 
sight, metal especially, as that does not absorb the oil to 
any great extent. 

Second. It should adhere well to metal or wood when mixed 
with linseed oil. 

Third. It should, when used with pure raw linseed oil, dry 
within a reasonable time, especially in warm dry weather. 

Fourth. It should be JElastic^ that when painted upon Iron or 
Tin it will expand or contract as they do. Both of these 
expand and contract with every change of temperature. 

Fifth. It should be unaffected by rain, snow or moisture, by 
smoke or cinders (upon car roofs), or the sulphurous fumes 
from burning coal. 

Sixth. It should be non-poisonous, that workmen may not be 
injured by it, or water made poisonous if it is used upon 
the inside of tanks, or upon roofs when rain water is used 
for drinking. 

Seventh. It should be finely ground, so that it will not settle 
.in oil, that it may spread smoothly and make no waste from 
sediment. 

Eig'hth. It should be durable, for the cost of dry pigment is 
only about one-tenth the cost of painting, the remaining 
nine-tenths being spent for oil and labor, and it costs as 
much, if not more, for oil and labor to apply a poor, worth- 
less paint that will last but a few months, as it does to ap- 
ply a good one that will protect metal thoroughly for 
five or six years before it needs renewal. 

Ninth. It should not scale, blister, chalk or crack, or change 
color to a lighter shade. 

Tenth. The cost should be moderate, so that any one can afford 

to buy it. 

Eleventh. Mixed with Linseed Oil, it should not run or crawl, 
using equal weights of pigment and oil. 



No Universal Paint bas ever been made, and none will be; 
the nearest approach to it is undoubtedly Prince Bros.* 
Mineral Brown, formerli/ called Princes' Metallic Paint. 
This full^ meets the eleven requirements specified. It was 
first introduced to the public in 1858, and has been favor- 
ably known to more people in the last 37 years than any 
other paint that has ever been put upon this market. Its 
use has steadily increased, the demand for it having been 
produced entirely by its own merits, and not by advertising. 

It Has Been Abused by parties having " substitutes " for 
or adulterations of Linseed Oil to sell, as they almost al- 
ways urge the sale of their compounds by stating that 
** they will work well with Metallic Paint," trusting that 
the merits of the dry pigment will commend the use of 
their mixtures to the consuming public. 

Analysis Tells Much, but Not All. We have had a good 
many samples of natural Iron Oxides analyzed by eminent 
chemists, and long ago found out that such analyses are 
indicative only as far as enabling any one to form an in- 
telligent opinion as to whether an oxide is suitable for use 
as a paint or not. An analysis can tell nothing about 
whether a pigment is durable or not; whether it has much 
or little covering power; and other qualities essential in a 
good paint, as elsewhere specified. 

An Illustration. The Diamond and charcoal are both by an- 
alysis pure carbon ; the difference between them is well 
. known: almost any one would rather own diamonds than 
charcoal. 

Expectations Not Realized. The first and most natural 
expectation of an inexperienced person, upon learning 
that a certain mineral contains a large percentage of Iron 
Oxide, is that such a mineral must be a better paint than 
another containing, perhaps, one-half as much. This is an 
error. It may be put down as a fact that the amount of 
Iron Oxide in a pigment is no indication whatever of its 
value as a paint; the kind of oxide and condition must also 
be determined. 

Samples Tested. We have obtained samples of many natural 
Iron Oxides offered for sale as paints and found most of 
them lacked essential qualities for that use. One containing 
94^ of oxide was 



8 

Weak in Color — had scarcely any strength of color, and 
showed this plainly when rubbed out in oil upon glass, 
being semi-transparent, and when painted upon a roof dis- 
appeared after the exposure of one summer. Another 
paint containing metal equivalent to 

90^ Oxide, made from Iron Pyrites, contained about 6^ of sul- 
phur, a large per cent, of iron, and a small per cent, of 
actual available oxide; its specific gravity was so great that 
when mixed with oil, ready for use, it would promptly sink 
to the bottom and form a hard cake; if kept constantly 
stirred and painted upon a tin or iron roof the sulphur and 
iron absorbed oxygen from the air, changed into the Hy- 
drated oxide of iron or rust, and eventually ate into the 
roof, producing corrosion instead of preventing it. 

Iron is Not a Paint, and in a pigment, no matter how finely 
ground, is one of the worst things that can be painted 
upon iron or tin ; it is only a question of time, and of a 
short time too, when the iron or tin painted with a pigment 
containing it will be filled with pin holes and a new roof 
required. 

Raw Iron Ores. Most of the paints made from raw iron ores 
contain a large per cent, of iron, but the available oxide is 
not present. 

Tin Roof Riddled, The writer has seen a tin roof in Toledo, 
O., that had been painted for one year with a paint made 
from raw iron ore containing a large per cent, of iron (the 
available oxide not being in the proper condition), that 
looked as if it had been riddled with fine shot all over it, 
making an entirely new roof necessary at a cost 50 times 
greater than the paint cost. 

Red Oxides. To obtain bright red oxides it is customary to 
take Sulphate of Iron (Copperas) and roast it until most of 
the sulphur has been driven off, the remaining oxide of iron 
absorbs oxygen and becomes a red; the more thoroughly 
the sulphur is expelled the darker the color. As light bright 
shades are the most in demand, and to reduce the cost 
Terra Alba, Gypsum or Lime is mixed with the red oxide, 4 
or 5 lbs. to one of oxide; these are roasted together and 
then ground; this mixture is called 



9 

Venetian Red. Upon wood it answers very well as a bright, 
handsome paint, but should never be used upon Iron or Tin, 
as it is often found to contain enough sulphuric acid to be 
most destructive to them, A very small per cent, of this 
acid is too much. 

Contain Acid. All Iron Oxides made from Sulphate of Iron 
contain more or less acid. The brighter the color the more 
acid there is in it. 

Drip Pans. The iron drip pans of the Sixth Avenue Elevated 
Railroad were painted with this kind of paint, and the 
pitting and rusting of them may be plainly seen by any 
one. 

Hydrated Oxide of Iron. This is simply iron rust (FcgOg, 
3H0g); it is a yellow color, and forms the coloring mat- 
ter in Yellow Ochre and Sienna. It is not used as a paint. 

Ochre Should Not be Used upon Iron, because it eon- 
tains from 5 to 15^ of moisture, as in the process of manu- 
facture it is washed to eliminate the sand found in it, then 
air dried (not by artificial heat, because that would change 
the color from yellow to pink or red, depending upon the 
amount of oxide in it). 

Used 40 Years Ago. Forty years ago all the Iron and Tin 
roofs in this city were painted with it. Experience proved 
that the moisture in it was very injurious to the metal it 
was painted upon; the paint after drying was frequently 
found, to have blisters containing water; this water would 
gradually evaporate, but it had left its mark in a coat of 
rust beneath the blister upon the face of the metal that 
kept increasing with age. 

Prince Bros.' Mineral Brown, formerly called Princes' 
Metallic Paint. When painters and the public found that 
a paint was in the market that did not have this fault, that 
was absolutely free from moisture and acid, and most thor- 
oughly protected the metal it was painted upon, Ochre was 
discarded and The Princes' Paint took its place, and took 
it to stay, for it is now hard to find a Tin or Iron roof not 
painted with it. 



10 

JEhtract from an article x>uUi8lied August^ 1892. 

THE COLORING PIGMENTS. 

By F. Maire. 

"Under this head might be included many pigments of 
brown oxide of iron origin, such as the Metallic Browns, Brown 
Mineral, &c. * * * * 

It may be well to say that the amount of this class of pig- 
ment sold in this country is enormous. 

Being 'cery economical, they are used largely in painting 
structural iron work, by railroad people in i^^vaimg freight cars 
and bridges, by farmers in painting barns and outhouses. In 
cities tin roofs are mainly painted with this class of pigment. 

While their color is anything but beautiful, they are very 
durable and economical, and their use is increasing yearly for 
that reason. 

They deserve this extensive use, and as they form good 
grounds for other painting over them there can be no serious 
objection to using them for that purpose." * * * * 



From " The Painters' Magazine,'^ July, 1894. 

BUYING AND MIXING PAINTS. 

By Y. B. Geinnell. 

" When you are about to mix dry pigments in oil, it is well 
to remember that yellow ochres, umbers, siennas, and red ox- 
ides of iron are liable to contain a large per cent, of water ab- 
sorbed from the air, and it is also well to remember that the 
grinder who grinds such pigments without first drying out the 
hygroscopic moisture is liable to sell you a paint containing 
from 1 to 14 per cent, of uncombined water. Hence you will 
see one cause why paints made of these pigments sometimes 
cause iron and tin to rust rapidly and blister and scale when 
exposed to the heat of the sun." 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT, 

AND IS ONLY MADE BY 

THE PRINCE MANUFACTURING CO., 
71 MAIDEN LANE. N. Y. 



11 

From '* Oil and Drug News^* March 8, 1881. 
RELATIVE DURABILITY OF PAINTS. 

In the course of a debate before the Master Car Painters' 
Convention at St. Louis, on the question as to "Which is the 
most durable and best adapted to Railway Buildings and 
Bridges, Iron or Lead Paint ? ^' Mr. Cooley said : 

" The proposition suggested combines two subjects, which 
are just as different as it is possible to make them — iron bridges 
and wooden buildings. As far as iron bridges are concerned, 
my experience is that iron paint is the best for them. I had a 
little experience last summer, on the Burlington and Quincy 
bridges. The Quincy bridge was painted with two coats of 
lead. The manufacturer primed it with iron. The same year 
that the Quincy bridge was painted with lead I painted the 
Burlington bridge with Princes'' Metallic Painty giving it two 
coats. Last summer I painted both bridges again with metallic 
paint, and I found the condition of the bridges very different 
indeed. I examined the bridges myself thoroughly, and I 
found that on the Burlington bridge^ which was painted five 
years before with Princes' Metallic Painty the paint was almost 
intact^ while the Quincy bridge, that was painted with two coats 
of lead paint the same year, had very little lead on it. From the 
top chord and the tops of all the rods the paint had entirely 
disappeared though the priming or mineral that was put on by 
the manufacturer, and on the sides, partially protected it. I 
never painted an iron bridge with lead myself, and that is all 
the experience I have had with lead and iron paint on iron 
bridges. As far as wooden bridges and wooden buildings are 
concerned, I would favor iron paint, as far as durability is con- 
cerned. So far as taste and color are concerned, of course light 
drabs are better, especially for buildings. We have used iron 
paint exclusively on all our bridges on the road that I do busi- 
ness for. We use mineral paint on our cheap buildings, and 
drabs, shaded, on our better class of houses; both with good re- 
sults. I think the mineral paint stands the longer. As far as 
durability is concerned, mineral paint, in my opinion, is better 
than lead?'' 

Mr. Murff — "We paint our depots, freight houses, etc., 
with Princes' Metallic Paint. We paint our window and door 
casings with white lead; we use both colors entirely mixed with 
oil. We put two coats of brown mineral paint upon our sid- 



12 

ings (the body of the house), and in order to have the job cov- 
ered thoroughly we put three coats of white lead on the casing, 
and I find that three coats of white lead do not stand as well as 
two of mineral. Therefore, I believe brown mineral paint is 
superior for buildings to white lead.'"' 

The President — "We adopt the same plan on the C, B. & Q. 
in regard to our permanent buildings, our stations and so on; 
we paint them drab; our plain buildings and water tanks, and 
all such things, we use mineral paint on; 1 find that mineral 
paint stands the best; the other will do for appearance, but not 
for durability.'^ 



The United States Government has adopted the 
Princes' Metallic Paint for use upon all Naval 
Ordnance, Cannon, Shot, Shell, &c., to arrest 
and prevent Corrosion by rust. 

The following extracts are made from the Ordnance Man- 
ual published by the Government in 1880 : 

*'Art. 1094. Before the storage is finally made (referring to 
guns, shot, shell, &c.) they should be carefully and thoroughly 
cleaned from rust and all improper coatings, and be well coated 
externally with the Princes' Metallic Faint. 

"Art. 1103. The guns should be cleaned from rust, and 
painted with the Princes' Metallic Painty and then painted 
black. 

"Art. 1108. The carriages are to be carefully examined, 
the rough iron work painted with the Princes' Metallic Paint. 
All iron work should be freed from rust and painted with the 
Princes' Metallic PaintP 



A Double Label " 




Is Our Trade Mark 



13 

PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



Extract from a letter to the ^'Painters* Magazine^'' Jan.y 1889, 

Page 67. 

HOW HE PAINTS IRON TANKS. 

Kent, Ohio, December 'Zth, 1888. 

For iron work I use a priming of Princes' Metallic Painty 
ground in two parts boiled oil and one part Japan reduced with 
Turpentine. Give two coats of this mixture, puttying and glaz- 
ing all defects on the first coat, then proceed with the painting 
of the tank. Your foundation is secure, and no trouble need he 
feared from rusting so long as the paint on the tank is properly- 
cared for. Robert McKeon, 

Secretary of the Master Car and Locomotive Painters' 
Association. 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



*' A Double Label" 




" Is Our Trade Mark." 



14 



Convention of Master Car and Locomotive Painters at 
New York, September 14, 15, 16, 1887. 

Subject — "What Constitutes the best Priming Coat of 
Paint for Locomotives and Tanks ?" 

Report by John S. Atwater, Hinckley Locomotive Works^ 
Boston, Mass. 

" Mr, President and Gentlemen : 

*' The subject of priming on locomotives and tanks is one in 
which I have been greatly interested in time past, and I have 
made several experiments with primers of different kinds. I 
regret that my time has been so taken up that I could not con- 
tinue the experiments, and prove or disprove some of the theo^ 
ries that I have heard advanced. 

So far I have found nothing to equal Princes' Metallic and 
oil for giving hard elastic coatings on which to put the orna- 
mental coats (by ornamental coats, I include the puttying, filling 
and coloring coats not necessary for durability but for appear- 
ance). 

No paint has any protective properties on iron except that 
which is given by the oil. 

The question then is what pigment will best unite with the 
oil and harden and protect the oil, and in so doing protect the 
iron ? 

Time is an important factor in the painting of engines, and 
what would be a durable primer for long-time-work would only 
be a cause of delay and annoyance on a job which must be 
done quickly. 

I mix my primer with Princes' Metallic and one-half tur- 
pentine, adding a little Japan if raw oil is used; this I mix thick 
and grind in a mill, then reduce to working consistency with 
the oil and turpentine, always keeping the same proportions of 
oil and turpentine. 

Second Coat : Use the same mixture thinned with two- 
thirds turpentine and one-third oil, then putty and surface on 
this foundation. 

By this method it takes about twelve to fifteen days to 
bring a tank to, including the first coat of varnish. 

Use the same primer on locomotives except on cylinders 
when painted cold; if primed while hot there is less danger of 
blistering." 



16 

Mr. C. C. Wood, of the Pennsylyania and New York Rail- 
road, also read a paper on the same subject. 

" After a careful observation of different tests and formulas, 
I have discarded the use of white lead entirely for locomotive 
and car painting, and use Princes' Metallic exclusively for 
priming and second coating on all iron-work on locomotives. 
I make a thick paste paint of Princes' Metallic of the following 
formula : Two parts rubbing varnish, one part prepared raw 
linseed oil, one part coach Japan, and thin with turpentine ; 
spread on freely and rub out well, and when possible, let dry 
for twenty-four hours; then sandpaper thoroughly and apply 
the second coat of the same formula, and in ordinary weather 
will dry sufficiently to putty all rough and uneven places in five 
or six hours . For cabs and tanks I use Princes' Metallic and 
prepared raw linseed oil alone, giving the work three or four 
days' time before sandpapering. For old work that the paint 
has been burnt off, I make a paste of Princes' Metallic^ of three 
parts oil, two parts rubbing varnish, one part Japan, and thin 
with turpentine. The prepared oil is raw linseed oil boiled over 
a slow and moderate fire for two or three hours to evaporate the 
water that is in the oil. I have used oil prepared this way for 
years and with good success. 

A member inquired "whether Mr. Wood had tried his 
method on steel," to which he replied affirmatively . "He used less 
oil wherever the paint was placed near a fire. Before painting 
his tanks he cleaned them with oil, not watei', rubbing them 
•down with sandstone and coating them with raw oil until 
ready to prime." 

The Secretary remarked "that while many years ago the only 
method of painting iron was coating it with white lead, we had 
^ome to discard lead in favor of Princes' Metallic and the agree- 
ment was almost universal.'' 

Mr. J. McMurtry said *' that it was his opinion that lead 
tended to create rust. They used on his line Princes'' Metallic 
and ochre, only employing lead to finish with." 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



16 

A SILVER MEDAL AWARDED. 

From an English Paper, Sept. 19th, 1884. 

" Crystal Palace International Exhibition. The highest award, 
a silver medal^ has been given at this Exhibition to The Prince 
Manufacturing Co. for Metallic Paint for Iron Work, &c/' 



USED AS A PRIMER AND SURFACER IN- 
STEAD OF LEAD. 

JEkctracts from the proceedings of the Master Car and Locomo- 
tive JPainters' Association Convention, held in Buffalo^ N. 
r., September^ 1894. 

Subject Ko. 8 — " What formulas which do not contain 
white lead have proven satisfactory substitutes for lead primers 
and surfacers, on the outside of Passenger Cars and Locomo- 
tives?" 

Mr. Chas. E. Copp (Boston & Maine R.R.). 

Mr. Copp gave quite a lengthy report upon his experiments 
with various primers, some containing lead and some not, and 
wound up by saying : 

"I will venture the suggestion that for such cars as are to 
be painted a dark color, particularly a Tuscan Red, the Oxide 
of Iron be tried as a substitute for the Carbonate of Lead for 
primer and surfacer, using the usual vehicles, such as linseed oil, 
Japan and spirits of turpentine in their proper proportions for 
the various coats, and rubbing all down with block pumice pre- 
paratory to putting on the color. 

For this purpose I should try Princes' Metallic dry, and 
mix and grind it myself. It seems to me that this ought to 
give us all the reqidsite lasting qualities of lead^ without the 
injuring ones." 

Mr. Fred. W. Wright (Mich. Central R.R.). 

******* It has been ray experience, and, from dis- 
cussions heard at previous conventions, generally admitted, that 
for iron, Mineral (Brown) is superior to lead for priming. I 
gave it several tests, using Princes' Metallic paint, mixed with 
the same formulas as lead, and found it to stand equally as 
well." * * * * 



It 

PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT, 

'* A Double Label" 




" Is Our Trade Mark " 

AND IS ONLY MADE BY 

THE PRINCE MANUFACTURING CO., 
71 MAIDEN LANE, N. Y. 



PRESERVATION OF IRON AND STEEL 
STRUCTURAL WORK. 

Extracts from an article hy Ghas E. Copp, M.G.P.,B,& M RE. 

From the Painters' Magazine, July, 1891. 

" In the first place, Red Lead contains within itself the ele- 
ments for its own destruction when mixed with oil as a paint, 
namely, its intense drying property. It is nothing more nor less 
than Litharge, further heated to a high temperature in a fur- 
nace, under which action it absorbes more oxygen and becomes 
redder in color. ***** 

Twenty-five years experience in the painting business bas 
proved to the writer that the best use that can be made of Red 
Lead is to use it for putty, or give it to the pipers for joints. 



18 

Painting tin car roofs for twenty years has demonstrated 
to us that it is not equal to good oxide of iron ground in raw oil, 
for the reason aforesaid, that it contains the element in it which 
vnll hum its own life out as a paint, and when that is burned out 
its elasticity is gone and its adhesion is measurably departed. 
Nine years experience in painting the upwards of one hundred 
Locomotive Tenders in this division of the B. & M. RR. has 
shown clearly to the writer that afrst class oxide of iron is the 
best primer for that purpose, having tried Red Lead also, and 
this is acknowledged to be one of the hardest tests in that line 
— on account of the rolled and scaly iron to begin with, and the 
constant action of the varying temperatures of the water within, 
which is often heated extremely hot by blowing back steam 
from the locomotive, and is often colder than the atmosphere 
without, so as to be in a constant sweat. ***** 

I believe that this application of oxide of iron of the right 
kind to iron to prevent rust is a true homeopathic law or prin- 
ciple, and is as scientific as is vaccination to prevent small pox, 
or Pasteur's remedy for hydrophobia, * * * * 'Similia 
Similibus Curantur ' may apply to paint as well as to medicine. 

It is the effective way of 'fighting the devil with fire.' * * * 
Red Lead may be best to paint ships' bottoms to be submerged 
under salt water, as the United Stales Government has demon- 
strated. We should want red lead there, if anywhere, to stop 
its fiery drying powers. But a salt water test (submerged be- 
neath it) does not occur to us as pertinent to railway work in 
general. We have known other paints to stand that test ad- 
mirably, which were utterly behind in the air, with others, on 
iron and wood," ***** 



JEktracts from the Master Car and Locomotive Painters' Con- 
vention, September 10-12, 1890. 

Subject — " What is the best one coat of paint that will 
hold rust back the longest ? " 

Mr. Quest — " Mr. President : I tried Red Lead and I should 
say that I had no better results in the use of Red Lead than 
with white, but I think I had a little better result in using the 
Princes' Metallic dark shade, and I think Princes' Metallic and 
raw oil, mixed up to a certain consistency — it don't want to be 
too heavy — and brushed over the work, will hold back rust longer 
than keg lead or red lead either. ... I would not have any 
hesitation in saying that oil and Princes' Metallic is most de- 



19 

cidedly the best thing that can be used, because that is demon- 
strated right along in Bridge work. I have had some experience 
in that kind of work, and I find that is the best thing that can be 
put upon it." 

Mr. Gohen — " I believe Metallic Paint and oil would be 
better to hold the rust back than red lead or white lead^ because 
•I believe there are chemicals in the white and red lead that would 
naturally corrode the iron. In Metallic Paint you have some- 
thing of the same nature as your iron and some of the preser- 
vative too'* 

Mr. Atwater — "I have not a great deal to offer. I do not 
know of anything that will keep rust back; that has got ta 
be got off in some way. If there is only one coat to be put 
on, oil and Princes' Metallic will hold its own as long as any- 
thing I know of." 

Mr. Coleman — " I have not got much to say on it. I use- 
Metallic and boiled oil together." 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT, 

''A Double Label" 




" Is Our Trade Mark. " 

AND IS ONLY MADE BY 

THE PRINCE MANUFACTURING CO., 
71 MAIDEN LANE, N. Y. 



Extracts from Convention Master Car and Locomotive 
Painters, September, 1889. 

Question — "How shall we paint the heated parts of a 
Locomotive?" 

The Chairman — " The question is now before the house, and 
if any member has anything he would like to say about it, he 



20 

can have an opportunity now to do so. I will ask Mr. Gilling- 
ham to speak upon the subject." 

Mr. Gillingham, Chicago & N. Western — "I am a good deal 
of a novice in this subject, and would prefer not to make any 
remarks upon it. I do not know that I could add anything to 
it. There seems to be a wide divergence of opinion between 
the gentlemen who have expressed themselves. I notice one or 
two points there that I might refer to. I do not know how it 
will work to mix Princes' Mineral without a dryer. That is 
certainly a new experience to me. I will try it. I am glad to 
obtain this information. The gentleman back of me spoke of a 
subject that I never heard of before; that is, black filling. 
With regard to the sand boxes and domes, and parts of loco- 
motives that become heated, we do not have anytime to put on 
any filling on the Chicago & Northwestern road; they want it 
too soon. The best thing we can use is an oil priming, and I 
use Princes' Mineral, and I put the black on it. I use an oil 
priming and ivory black, a coat of rubbing varnish, a coat of 
finish varnish, and our job is done. Our tanks we fill. I give 
them one, and where it is a new tank I try to give them 
two coats of priming of Princes' Mineral^ boiled oil, japan and 
turpentine. I fill with a putty composed of dry lead and 
Princes' Mineral, mixed with rubbing varnish, Nonpareil 
Japan and boiled oil. We rub that smooth with pumice stone 
where we have time. We usually have a little more time on 
our tanks than on the engine. After being rubbed, we give 
them a thin coat of oil, lead color priming, well brushed out, 
and then flat black and varnish, rubbing the varnish." 

The Chairman — " What portion of oil do you use in the 
priming, and do you use boiled or raw oil?" 

Mr. Gillingham — " Boiled oil. I should say about six parts 
of boiled oil to two of japan and four of turpentine." 

Mr. Samuel Brown, Old Colony, Boston, Mass. — ''Mr. Presi- 
dent and gentlemen: The discussion of all these questions, to 
my mind, is simply giving our personal experience. What we 
use for priming is a preparation of mineral and lead. The idea 
of adding the lead to the mineral is that we have the impres- 
sion that it helps to make it combine together; it prevents a 
little separation as it were. Mineral is a very good article — 
grand. We had a discussion at our New York Convention, 
and it was conceded there by a large majority of the members 
that minerals were the thing for iron work, and to give a little 



21 

more body and solidity to it the addition of a certain portion 
of lead was a good thing. That has been my experience in 
painting iron." 

Mr. Lowrey — " I have had some experience in connection 
with locomotive painting, yet I do not wish to say anything. 
The gentleman at the corner of the table does what I do ; that 
is, to prime with. Princes' Mineral and a quantity of oil, two- 
thirds turpentine and the balance japan, and get on as little 
material as you can and get service. The purpose is to get 
your varnish to protect your paint. This is my experience in 
treating the heating parts of the locomotive." 

Mr. Wm. O. Quest, Pittsburg & Lake Erie — " The gentlemen 
all appear to he pretty unanimous in the use of Princes' Metallic 
as a primer^ and that is my mode when I have time,'^ 



Extract from an Article by C. B. Dudley, Chemist of the Penn- 
sylvania B. B. Co. 

**"We are quite free to confess that in our experience we 
have not been able to confirm the common belief among paint 
manufacturers, and indeed among many of the users, that the 
oil is the life of the paint. The pigment is the life of the paint 
according to our experience. In reality, the pigment protects 
the oil from decay, if it is present in proper amount, and still 
further is of the proper kind. A single thought seems to us to 
have very much weight in this connection, namely, with such 
pigments, for example, as Oxide of Iron., which undergo no 
chemical change in centuries of exposure, it is obviously the oil 
which decays and wastes away. Even though the pigment has 
fallen off from the surface, it is still oxide of iron, and is un- 
changed. Not so with the oil; it is constantly undergoing slow 
decomposition, and in reality the wear and wasting away of paint 
is largely the decay of the oil. This statement, of course, only 
holds true where there is no chemical action between the oil and 
the pigment. * * * * It is sufficient for our purpose here 
to put clearly on record that we regard it as an essential of 
good paint that the amount of pigment per square inch or square 
foot of surface should be large." 

The remarks of Dr. Dudley quoted above coincide with our 
own opinion, viz., that the proper proportion to use of the 
Prince Bros.' Mineral Brown pigment is 7^ lbs. to one gallon 
(7^ lbs.) of pure Linseed Oil. 



22 

Red Lead as a paint for iron has been strongly pushed to 
the front within a few years, and many claims made for it 
that are extravagant and unreasonable. 

It Contains an Excess of Oxygen . It is made by melt- 
ing lead and blowing air for a long time upon the surface. 
The oxygen is absorbed in large quantities, changing the 
color to a bright yellow red, but semi-transparent and hav- 
ing but little covering power. Its chemical symbol is PbgO^. 

Holds Oxygen Loosely. There is no other pigment known 
that contains so much oxygen, or that holds it so loosely,, 
or gives it up so readily as red lead, holding it much as a 
sponge holds v^ater, " until it is squeezed." When red lead 
is brought into contact with something for which the oxy- 
gen has a greater affinity than it has for lead it at once- 
leaves the lead and combines with its affinity. Linseed Oil 
and Iron both have a greater affinity for oxygen than it has 
for Lead; hence it readily combines with both of these. 

It Makes "Drying" Oil . Two or three pounds of Red Lead 
if heated in 100 lbs. of Raw Linseed Oil will promptly give 
up its excess of oxygen to the oil, partly oxidizing it and 
changing it from a slow drying to a quick drying oil, for the 
"drying" of oil means simply that the oil has absorbed 
from air or other sources sufficient oxygen to harden it in 
less time than without it. 

If Iron is painted with Red Lead paint, corrosion is- 
not prevented, but produced, the Red Lead covers it up 
and keeps it out of sight, and the rusting goes on beneath 
it just the same. 

Painters object to using Red Lead, not only because it is 
high priced, but because it is coarsely ground, settles in the 
pot, becomes hard and has to be thrown away. 

Red Lead is poisonous if absorbed into the human system, and. 
further, is a cumulative poison. 



1 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



23 



DO YOU KNOW THIS? 

Rust Joints are generally made, when Iron Pipes are to be 
joined permanently together, by smearing the screw threads 
of each piece of pipe with Red Lead and then screwing 
them together. The red lead quickly oxidizes and rusts the 
iron to such an extent that the join»t cannot be unscrewed 
again. 

Steam Pipe Fitters and Gas fitters know this. Every chemist 
knows and will confirm it. Engineering students in Tech- 
nical Colleges are taught to make Rust Joints in this way. 

Red Lead runs when applied as a paint. It is so very much 
heavier than the oil that, when painted upon a perpendic- 
ular surface, the first coat is sure to run, the lead separating 
from the oil and running down in streaks. After this has 
dried, the second coat is held better in suspension, being 
supported by the rough first coat, and it does not run 
as much as the first coat. 

Red Lead is Coarse, because if finely ground the oxygen is 
to a certain extent separated from the lead, and the color 
is changed to a dull red shade. 

Red Lead becomes hard when mixed with linseed oil. The 
oxygen from the lead oxidizes the oil very quickly; if left 
standing over night in the painter's pot, it hardens so much 
that it cannot be used. 

Red Lead cannot be ground into a paste with oil for the 
same reason, it becomes a solid mass in a very short time. 

Red Lead can only be used by mixing a small quantity 

with oil by hand, and using it all up at one time. 
This property of drying up oil so quickly and becoming hard 

has led to its use upon Iron and Steel ships. 
Red Lead Paint, ready for use, is made "by mixing 20 lbs. 

of Red Lead with 5^ lbs. of Linseed Oil, and this makes 

one gallon of paints 

Now bear in mind that twenty lbs. of Red Lead con- 
tain sufficient oxygen to oxidize 800 lbs. of Linseed 
Oil. "2ilbs. of red lead to 100 lbs. of oil" being the 
proportion mentioned in a pamphlet recently issued, what 
is and what must be the result when this oxygen battery is 
turned loose upon a poor little o^ lbs. of oil ? It dries it 



24 

up of course, the little drop of oil takes up all the oxygen 
it can take up, which is just about f^g-th of the oxygen 
present, and the remainder of the oxygen, like a hungry 
lion, is ready to devour anything else that it can find con- 
veniently near. If that happens to be iron, it takes hold of 
that with avidity and combines with it, making a coat of 
Iron Oxide beneath' the Red Lead. The Red Lead paint 
remains hard upon the surface — tells no tales — covers up 
the mischief it has done; but when the second coat of Red 
Lead is applied, the excess of oxygen passes through the 
first coat of paint and L-on Oxide, combines with the iron 
and forms another coat of Iron Oxide behind the first one. 

The third coat of Red Lead acts exactly like the second one, 
piling up the Iron Oxide in the rear, and soon continuously, 
every additional coat of Red Lead producing the same 
result. 

Red Lead upon Iron Vessels, Bridges, &c. The users 
believe that, because it dries quickly and becomes hard upon 
the surface, it protects the metal beneath it from rust and 
corrosion. This we know to be an error. We know of an iron 
vessel that had been painted before leaving the stocks with 
two coats of red lead upon the inside of the hull and one coat 
annually over this for five years, making seven coats in all. 
The owner believed his boat was in the best possible condition, 
but upon cutting through the seven coats of red lead,which 
were hard, with a hammer and chisel, it was found that the 
iron had corroded beneath the red, lead and formed into 
layers of scale (rust) j^g^ths of an inch in thickness,while the 
outside coating of red lead was -f^\\\^ of an inch thick (the 
original thickness of the iron was fth of an inch). The 
owner had all of the red lead and iron scale carefully 
cleaned off the hull, this made 40 cart loads in bulk, and 
then painted the hull with an anti-corrosive paint made 
from Prince Bros.' Mineral Brown. This was three years 
ago, and since then he has had no further trouble, 

A colored photograph of some of this Red Xeac^and 
Iron Scale is on the opposite page, and the original sped- 
men may be seen by any one calling at our office. 





No. 3 




No. 



From THE PRINCE MANUFACTURING CO., 

7i MAIDEN LANE, NEW YORK. 

Photos of BLACK IRON OXIDE SCALE, 

PRODUCED BY PAINTING THE INSIDE OF 

THE HULL OF AN IRON STEAMBOAT WITH 

SEVEN COATS OF RED LEAD. 

No. I. FRONT VIEW OP SCALE, SHOWING RED LEAD SURFACE. 
No. 2. BACK VIEW OF SCALE, SHOWING BLACK IRON OXIDE AND RUST. 
Noa. 3 and 4. EDGE VIEWS, SHOWING COMPARATIVE THICKNESS OF THE 
RED LEAD, AND THE BLACK IRON OXIDE IT PRODUCED. 



25 

SIX CASES OF LEAD POISONING. 

From '^The Press,'" New York, November Qth, 1894. 

**Mrs. Joseph Donnanly, of Evergreen, Ohio, died, and her 
three sisters and father are not expected to live, from the 
effects of drinking poisoned rain water." The roof of their 
house had been painted with White Lead. 



INTERESTING CASE OF POISONING. 

From *' Oil, Paint and Drug Reporter ^^ November 25, 1885. 

"Dr. Bartley, Chemist to the Brooklyn Board of Health, re- 
ports an interesting case of lead poisoning which was caused 
by using water from a tank on shipboard which had been 
painted nine months before with Red Lead^ (If Princes' Mineral 
Brown had been used instead of lead these lives would have 
been saved. There is no poison in that,) 



COMPARE THE COST!! 

Two coats of Red Lead paint will not cover iron as well as 
one coat of Princes' Mineral. 

A gallon of Red Lead paint contains 

20 lbs. Red Lead @ 5 cents lb., . . . $1.00 

5^ lbs. Raw Linseed Oil, @ 50 cents per gall., .36-J 

Time to apply it, say, 1.00 



Cost of one coat, . . . . $.2.36^ 

But as two coats are necessary, the cost would "be ^4.73 ; this 
will cover 755 square feet, equal to 63 cents per 100 square feet. 
Compare this with the cost of Princes' Mineral, which with 
one coat completely covers iron. 

A gallon of Princes' Mineral contains 

6i lbs. Princes' Mineral at say 1^ cents lb., . $0.09^ 

6:^ lbs. Raw Linseed Oil at 50 cents gallon, . .43 

Time to apply, say, ...... 1.00 



Cost of one coat, ..... $1.53 

This will cover 700 square feet, equal to 22 cents per 100 square 
feet. 

Which is the wisest — to pay 63 cents to put a destricctive 
paint upon iron ; or to pay 22 cents for a paint tha^t preserves 
3ind protects it? The wise man says '* Give me Princes' Mineral 
every time." 



26 



HAS USED IT 26 YEARS. 

Kansas City, St, Joseph & Council Bluffs R. R. Co. 
St. Joseph, Mo., Dec. 20th, 1893. 
The Prince Manufacturing Co., Yl Maiden Lane, N. Y. : 

Gentlemen : " Ring off" I have been using your paint for 
26 years. When I find a better mineral paint than yours I will 
write .and let you know. 

I am a friend to your mineral and show it to other firms' 
agents when I meet them. I use 25 barrels a year and will use 
much more next year. 

Respectfully yours, 

C. F. Harball, 

M. C. P. 



'' RED LEAD BECOMES UNFIT FOR USE." 

From ^''Western Painter^'' September^ 1894, jt?. 304. 

" Red Lead has a remarkable effect upon drying oils, solidi- 
fying them rapidly. Linseed oil and red lead made up as a 
paint thickens in the pot and becomes unfit for use in forty- 
eight hours. If japan or varnish be added to the paint, it will 
thicken while it is being used and be unfit for use in a few 
hours." 



PRINCE BROS.' mineral BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 

'* A Double Label" 




Is Our Trade Mark." 



27 



THERE IS NO BETTER PAINT IN THE 
WORLD. 

Chicago & Eastern Illinois R. R. Co. 
Danville, Ills. 

The Prince Manufacturing Co., 71 Maiden Lane, N. Y. : 

G-ENTLEMEN : I will Say we have used Princes' Metallic 
Paint for the last 6 years, and I would not use any other. We 
use it altogether upon engines and freight cars. We buy it 
^ry and grind it in boiled oil. It costs the company 45 cents a 
gallon mixed ready for use, and there is no better paint in the 
world. We use in the summer time 5 to 6 barrels a month. A 
box car well painted with Princes' Mineral Paint ground in 
pure linseed oil will last the life of the car. 

I remain yours truly, 

F. W. FOOTE, 

M. C. P. 



PRINCE BROS,' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



A Double Label " 




Is Our Trade Mark." 



28 

Extract from an Article upon '■^Painting Car Roofs.'* 

By Chas. E. Copp, M. C. P. 

" What is the best paint for car roofs, and about how often 
should they be painted ? is a question pertinent to the railway paint 
shop. Presuming that the steam car roof, freight or passenger, is 
covered with tin, as most of them are now, there is, to our mind, 
nothing better to paint it with than the best metallic or iron ore 
painty mixed with the best raw linseed oil; that is, provided it is 
to go on the bare new tin. If the roof has been spoiled by daub- 
ing it over in the first place with an improper mixture, I do 
not know as it makes much difference what you put on next. A 
good foundation is necessary to permanent after work and dur- 
able finish, whether it is the building itself or the paint put 
upon it. But perhaps some prefer a white lead priming for the 
bare tin with a portion of the mineral (paint) in it to color 
it. Having tried it, I see no advantage in it. White lead 
has no superiority over metallic paint in adhesion to tin when 
exposed to long wear. Again there are many advocates of 
Red Lead as a primer for tin. I have so used it and must 
again confess that lean say nothing in its favor over the Metallic 
Paint put right onto the tin. The adhesion is in the oil, and not the 
pigment ; and for that reason and because red lead is such an in- 
veterate drier ^ I believe the very elements of destruction are in it to 
burn out the vitality of the oil and 7naJce it lose its elasticity and 
adhesion sooner than other pigme7its^ and thus cause it to cracky 
flake^ or shell off in a shorter time when it is racked and jarred^ 
as a car is, when jacked up, or run over switches at a fearful 
speed. There are no pores to tin into which the paint can per- 
colate and clinch and hold on with a death grip, when its vital- 
ity has gone out of it. I have seen nothing better for roofs than 
Princes' Metallic and oil. If you can get a reliable house to 
furnish this to you ground and ready mixed, it is well ; if you 
can do it yourself, it is better." 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



PAINTING FREIGHT CARS. 

Extracts from Proceedings at the Master Car Painters' Conven- 
tion^ September^ 1891. 

Question foe Discussion — "What materials do you use 
and how long do you take to paint freight cars ? 

Mr. Lord (of the Fitchburg R. R.) — " The paint we use is 
Princes' MetallicP 

The President, Mr. Gohen (of the Chesapeake & Ohio R. R.) 
— '* We use a mixed paint that comes in paste form, the base of 
which is Princes' Metallic. We do them in about three days, 
sometimes we have them longer ; we give them a coat a day, 
three coats. We coat in the morning and stencil in the after- 
noon." 

Mr. McKeon (of the Penn. & Ohio R. R.) — " In regard to 
painting freight cars, I would say, we paint them in three days, 
old cars, and that is about all we have ; old cars we give two 
coats ; whatever puttying there is to do we do first, and give it 
a coat each day and stencil them in the afternoon of the second 
day, and we have the cars completed inside of two days. We 
use Princes' Metallic and boiled oil. The Metallic comes in paste 
form and we thin it down." 

Question — ** What is the best formula for preparing floor 
paint for passenger cars ? 

Mr. Given (West Shore R. R.) — *' I use Princes' Metalliciov 
the last coat." 

Mr. Stout (B. & O. R. R.)— '' We use the Metallic and tur- 
pentine and oil." 



"IS WELL PLEASED WITH IT." 

Little Rock & Memphis Raileoad Company, 
Argenta, Aek., December 12th, 1893. 

The Prince Manufacturing Co., 71 Maiden Lane, ^N". Y. 

Dear Sirs : We have used your Metallic Paint for many 
years on this road, and I am well pleased with it. 
Very respectfully yours, 

F. Mattice, 

Foreman Car Painter. 



m 



*'IT GIVES GOOD SATISFACTION." 

Burlington Route, 
Chicago, Burlington & Quincy Railroad, 
Burlington, Iowa, June 30th, 1893. 
The Prince Manufacturing Co., New York : 

Gentlemen : I have been using your Metallic Paint on 
freight cars and buildings for many years, and have found it 
giving good satisfaction. I recommend it for bridges, and have 
just started a gang of painters to paint our Iron Bridges with it, 
of which we have over fifty to be painted this season. 

Princes' Mineral will be used instead of Red Lead as used 
heretofore, as I have no doubt it will give better results. 

Tours truly, 

Fred Johnson, 

Foreman Painter. 



PRINCE BROS.' mineral BROWN 

WAS FORMERLY called 

PRINCES' METALLIC PAINT. 



HE FIGHTS FOR IT. 

Lehigh Yallet R. R., 

Satre, Pa., Sept. 12th, 1893. 
Mr. D. Prince, Secretary, 

The Prince Manufacturing Co., New York : 
Dear Sir : I have used your Princes' Metallic whenever I 
could get it for the last 23 years, ever since I have been in the 
employ of the Lehigh Valley R. R. I never had any trouble in 
getting your brand of Metallic, until a few years ago the *' Ruth- 
erford" brand came into market, and since then I have had 
trouble, as the Rutherford is too coarse and gritty for Loco- 
motive painting. 

Will you please send me a sample of your Metallic, as I am 
entirely out of it and have been fighting for it for over a year* 
I want the sample to convince our store-keeper that there is a 
very great difference between the two paints. 

Yours truly, 

Chas. C. Wood, 
Master Locomotive Painter. 



\ 



31 



PRINCE BROS.' MINERAL BROWN 

WAS FORMERLY called 

PRINCE'S METALLIC PAINT. 

"ADonbleLabel" 




Is Our Trade Mark." 



HAS USED IT FOR THIRTY YEARS. 

C. B. & K R. R. Shops, 
Grand Crossing, La Crosse, Wis. 

The Prince Manufacturing Co., New York : 

Gentlemen : I have used your Metallic Paint for the past 

thirty years, and use it now on all freight cars. I also use it in 

combination on all passenger coach and locomotive work, and 

have found it to be all that you claim for it. This is unsolicited. 

_ Tours truly, 

J, K. LOWERY, 

Foreman of Paint Dep't. 



FOUND NOTHING ELSE EQUAL TO IT. 

Burlington & Missouri River R. R. Co., 

Plattsmouth, Neb., Dec. 4th, 1893. 
David Prince, Esq., Yl Maiden Lane, N. Y. : 

Dear Sir : We have been using Princes' Mineral on the 
B. & M. R. R. for the past lY years. We have tried others 
during that time, but have found nothing to compare with the 
JPrinces 'Mineral. Yours, 

D. B. Smith, Foreman Painter, 

Drawer 1168. 



32 



IT IS THE MOST ECONOMICAL AND DURABLE. 

West End Street Railway Coup any, 

General Offices, 81 Milk Street, Boston, 

Nov. 29th, 1893. 

The Prince Manufacturing Co., 71 Maiden Lane, N. Y. : 

Dear Sirs : I will say that I have used your paint during 
the past ten (10) years with entire satisfaction. 

I consider it the most economical and durable paint I ever 
handled. Yours very truly, 

H. L. LiBBY, M. p. 



PRINCE BROS/ MINERAL BROWN 

WAS FORMERLY called 

PRINCE'S METALLIC PAINT* 

"A Double Label" 




Is Our Trade Mark." 



The final conclusion is, if you wisii to preserve 
Iron or Steel from corrosion, paint them with PRINCE 
BROS.' MINERAL BROWN and pure Linseed Oil, but 
do NOT use RED LEAD. 



LIBRARY OF CONGRF<;q 

Mil 



